Super Sign Manufacturing Co., Limited · Longgang, Shenzhen 518116
Fabricated aluminium lettering
Solution

Sign Letters That Survive Weather And Salt Air

Everything in this catalogue can be made for outdoor use. What changes outdoors is the grade, the construction and the fixing, and those decisions are made before production rather than after.

The Route

Four Decisions In Order

Taken in this sequence, each decision narrows the next one. Taken out of order, they contradict each other.

Choose the grade

316 stainless contains molybdenum and resists chloride pitting, which is what matters within reach of sea spray or pool chemistry. 304 performs identically inland and costs less. Aluminium alloy is the third route and is specifically recommended for marine environments.

Close the letter

Fabricated letters are built as closed boxes so rain and insects stay out of the cavity. That is also why a closed letter cannot be converted to illuminated later; the decision belongs at this stage.

Protect the surface

Anodising grows the anti-rust layer into aluminium. Powder coating bakes colour on over either metal. Electroplated gold is recommended for indoor use only and is the wrong finish for an exposed facade.

Plan the fixing and the cable

Back stud and back screw bolt fixings are supplied with a 1:1 scale template. On illuminated work the cable entry at the wall is sealed by the installer, and that joint is where water ingress actually happens.

Products On This Route

Six Builds That Fit

Where It Applies

Families Industries And Guides

Questions

Outdoor And Coastal Signage Questions

Is 316 always worth the extra cost?

No. Inland, 304 performs the same and the price difference grows with letter height. Within a few hundred metres of the sea, or around a pool, 316 is the right call.

Is aluminium better than stainless outdoors?

Different, not better. Aluminium is lighter, cheaper at large sizes and specifically recommended for marine environments. Stainless gives you a steel finish and dents less in transit.

Can painted letters be used outside?

Powder coated and wet painted metal letters are both suitable for outdoor use. Painted PVC is not; it is specified for interiors and will move in colour under sustained sunlight.

What maintenance do outdoor letters need?

A wipe down. Mirror finishes show water spotting in hard water areas, and halo letters collect dirt in the stand-off gap behind the letter.

Outdoor And Coastal Signage

Describe the site and the constraint and we will tell you which build answers it, with the production window attached to the price.